Not sure if the Chinese have figured out a way for the newer ARM-based ones yet (I realise it's already been several years since the M1 was released...) but I believe most of the older x86 ones have been cracked.

I've unlocked some old Thinkpads that were similarly left locked with a BIOS password by departed employees, officially not possible, but actually possible if you reflash the BIOS and EC ROMs.